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newsstats/bin/parsedb.pl
Thomas Hochstein aef5467bfe Handle more than one entitiy in From: etc. 
From:, Sender: etc. may contain more than one
entity in a comma separated list, i.e. a From:
line like
"From: Me <me@example.com>, You <you@example.com>"
is perfectly valid.

Handle multiple entities when splitting those
headers and save all names and all adresses
as (new) comma separated lists in the
corresponding database fields.

Signed-off-by: Thomas Hochstein <thh@inter.net>
2013-09-08 17:53:21 +02:00

369 lines
12 KiB
Perl
Executable file
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#! /usr/bin/perl
#
# parsedb.pl
#
# This script will parse a database with raw header information
# from a INN feed to a structured database.
#
# It is part of the NewsStats package.
#
# Copyright (c) 2013 Thomas Hochstein <thh@inter.net>
#
# It can be redistributed and/or modified under the same terms under
# which Perl itself is published.
BEGIN {
our $VERSION = "0.01";
use File::Basename;
# we're in .../bin, so our module is in ../lib
push(@INC, dirname($0).'/../lib');
}
use strict;
use warnings;
use NewsStats qw(:DEFAULT :TimePeriods :SQLHelper);
use DBI;
use Getopt::Long qw(GetOptions);
Getopt::Long::config ('bundling');
use Encode qw/decode/;
use Mail::Address;
################################# Definitions ##################################
# define header names with separate database fields
my %DBFields = ('date' => 'date',
'references' => 'refs',
'followup-to' => 'fupto',
'from' => 'from_',
'sender' => 'sender',
'reply-to' => 'replyto',
'subject' => 'subject',
'organization' => 'organization',
'lines' => 'linecount',
'approved' => 'approved',
'supersedes' => 'supersedes',
'expires' => 'expires',
'user-agent' => 'useragent',
'x-newsreader' => 'xnewsreader',
'x-mailer' => 'xmailer',
'x-no-archive' => 'xnoarchive',
'content-type' => 'contenttype',
'content-transfer-encoding' => 'contentencoding',
'cancel-lock' => 'cancellock',
'injection-info' => 'injectioninfo',
'x-trace' => 'xtrace',
'nntp-posting-host' => 'postinghost');
# define field list for database
my @DBFields = qw/day mid refs date path newsgroups fupto from_ from_parsed
from_name from_address sender sender_parsed sender_name
sender_address replyto replyto_parsed replyto_name
replyto_address subject subject_parsed organization linecount
approved supersedes expires useragent xnewsreader xmailer
xnoarchive contenttype contentencoding cancellock injectioninfo
xtrace postinghost headers disregard/;
################################# Main program #################################
### read commandline options
my ($OptDay,$OptDebug,$OptParseDB,$OptRawDB,$OptTest,$OptConfFile);
GetOptions ('d|day=s' => \$OptDay,
'debug!' => \$OptDebug,
'parsedb=s' => \$OptParseDB,
'rawdb=s' => \$OptRawDB,
't|test!' => \$OptTest,
'conffile=s' => \$OptConfFile,
'h|help' => \&ShowPOD,
'V|version' => \&ShowVersion) or exit 1;
### read configuration
my %Conf = %{ReadConfig($OptConfFile)};
### override configuration via commandline options
my %ConfOverride;
$ConfOverride{'DBTableRaw'} = $OptRawDB if $OptRawDB;
$ConfOverride{'DBTableParse'} = $OptParseDB if $OptParseDB;
&OverrideConfig(\%Conf,\%ConfOverride);
### get time period
### and set $Period for output and expression for SQL 'WHERE' clause
my ($Period,$SQLWherePeriod) = &GetTimePeriod($OptDay,'day');
# bail out if --month is invalid or "all"
&Bleat(2,"--day option has an invalid format - please use 'YYYY-MM-DD' or ".
"'YYYY-MM-DD:YYYY-MM-DD'!") if (!$Period or $Period eq 'all time');
### init database
my $DBHandle = InitDB(\%Conf,1);
### get & write data
&Bleat(1,'Test mode. Database is not updated.') if $OptTest;
# create $SQLWhereClause
my $SQLWhereClause = SQLBuildClause('where',$SQLWherePeriod,'NOT disregard');
# delete old data for current period
if (!$OptTest) {
print "----------- Deleting old data ... -----------\n" if $OptDebug;
my $DBQuery = $DBHandle->do(sprintf("DELETE FROM %s.%s %s",
$Conf{'DBDatabase'},$Conf{'DBTableParse'},
$SQLWhereClause))
or &Bleat(2,sprintf("Can't delete old parsed data for %s from %s.%s: ".
"$DBI::errstr\n",$Period,
$Conf{'DBDatabase'},$Conf{'DBTableParse'}));
};
# read from DBTableRaw
print "-------------- Reading data ... -------------\n" if $OptDebug;
my $DBQuery = $DBHandle->prepare(sprintf("SELECT id, day, mid, peer, path, ".
"newsgroups, headers, disregard ".
"FROM %s.%s %s", $Conf{'DBDatabase'},
$Conf{'DBTableRaw'}, $SQLWhereClause));
$DBQuery->execute()
or &Bleat(2,sprintf("Can't get data for %s from %s.%s: ".
"$DBI::errstr\n",$Period,
$Conf{'DBDatabase'},$Conf{'DBTableRaw'}));
# set output and database connection to UTF-8
# as we're going to write decoded header contents containing UTF-8 chars
binmode(STDOUT, ":utf8");
$DBHandle->do("SET NAMES 'utf8'");
# parse data in a loop and write it out
print "-------------- Parsing data ... -------------\n" if $OptDebug;
while (my $HeadersR = $DBQuery->fetchrow_hashref) {
my %Headers = %{$HeadersR};
# parse $Headers{'headers'} ('headers' from DBTableRaw)
# merge continuation lines
# from Perl Cookbook, 1st German ed. 1999, pg. 91
$Headers{'headers'} =~ s/\n\s+/ /g;
# split headers in single lines
my $OtherHeaders;
for (split(/\n/,$Headers{'headers'})) {
# split header lines in header name and header content
my ($key,$value) = split(/:/,$_,2);
$key =~ s/\s*//;
$value =~ s/^\s*(.+)\s*$/$1/;
# save each header, separate database fields in %Headers,
# the rest in $OtherHeaders (but not Message-ID, Path, Peer
# and Newsgroups as those do already exist)
if (defined($DBFields{lc($key)})) {
$Headers{$DBFields{lc($key)}} = $value;
} else {
$OtherHeaders .= sprintf("%s: %s\n",$key,$value)
if lc($key) !~ /^(message-id|path|peer|newsgroups)$/;
}
}
# replace old (now parsed) $Headers{'headers'} with remanining $OtherHeaders
chomp($OtherHeaders);
$Headers{'headers'} = $OtherHeaders;
foreach ('from_','sender', 'replyto', 'subject') {
if ($Headers{$_}) {
my $HeaderName = $_;
$HeaderName =~ s/_$//;
# decode From: / Sender: / Reply-To: / Subject:
if ($Headers{$_} =~ /\?(B|Q)\?/) {
$Headers{$HeaderName.'_parsed'} = decode('MIME-Header',$Headers{$_});
}
# extract name(s) and mail(s) from From: / Sender: / Reply-To:
# in parsed form, if available
if ($_ ne 'subject') {
my @Address;
# start parser on header or parsed header
# @Address will have an array of Mail::Address objects, one for
# each name/mail (you can have more than one person in From:!)
if (defined($Headers{$HeaderName.'_parsed'})) {
@Address = Mail::Address->parse($Headers{$HeaderName.'_parsed'});
} else {
@Address = Mail::Address->parse($Headers{$_});
}
# split each Mail::Address object to @Names and @Adresses
my (@Names,@Adresses);
foreach (@Address) {
# take address part in @Addresses
push (@Adresses, $_->address());
# take name part form "phrase", if there is one:
# From: My Name <addr@ess> (Comment)
# otherwise, take it from "comment":
# From: addr@ess (Comment)
# and push it in @Names
my ($Name);
$Name = $_->comment() unless $Name = $_->phrase;
$Name =~ s/^\((.+)\)$/$1/;
push (@Names, $Name);
}
# put all @Adresses and all @Names in %Headers as comma separated lists
$Headers{$HeaderName.'_address'} = join(', ',@Adresses);
$Headers{$HeaderName.'_name'} = join(', ',@Names);
}
}
}
# order output for database entry: fill @SQLBindVars
print "-------------- Next entry:\n" if $OptDebug;
my @SQLBindVars;
foreach (@DBFields) {
if (defined($Headers{$_}) and $Headers{$_} ne '') {
push (@SQLBindVars,$Headers{$_});
printf ("FOUND: %s -> %s\n",$_,$Headers{$_}) if $OptDebug;
} else {
push (@SQLBindVars,undef);
}
}
# write data to DBTableParse
if (!$OptTest) {
print "-------------- Writing data ... -------------\n" if $OptDebug;
my $DBWrite =
$DBHandle->prepare(sprintf("INSERT INTO %s.%s (%s) VALUES (%s)",
$Conf{'DBDatabase'},
$Conf{'DBTableParse'},
# get field names from @DBFields
join(', ',@DBFields),
# create a list of '?' for each DBField
join(', ',
split(/ /,'? ' x scalar(@DBFields)))
));
$DBWrite->execute(@SQLBindVars)
or &Bleat(2,sprintf("Can't write parsed data for %s to %s.%s: ".
"$DBI::errstr\n",$Period,
$Conf{'DBDatabase'},$Conf{'DBTableParse'}));
$DBWrite->finish;
}
};
$DBQuery->finish;
### close handles
$DBHandle->disconnect;
print "------------------- DONE! -------------------\n" if $OptDebug;
__END__
################################ Documentation #################################
=head1 NAME
parsedb - parse raw data and save it to a database
=head1 SYNOPSIS
B<parsedb> [B<-Vht>] [B<--day> I<YYYY-MM-DD> | I<YYYY-MM-DD:YYYY-MM-DD>] [B<--rawdb> I<database table>] [B<--parsedb> I<database table>] [B<--conffile> I<filename>] [B<--debug>]
=head1 REQUIREMENTS
See L<doc/README>.
=head1 DESCRIPTION
...
=head2 Configuration
...
=head1 OPTIONS
=over 3
=item B<-V>, B<--version>
Print out version and copyright information and exit.
=item B<-h>, B<--help>
Print this man page and exit.
=item B<--debug>
Output (rather much) debugging information to STDOUT while processing.
=item B<-t>, B<--test>
Do not write results to database. You should use B<--debug> in
conjunction with B<--test> ... everything else seems a bit pointless.
=item B<-d>, B<--day> I<YYYY-MM-DD[:YYYY-MM-DD]>
Set processing period to a single day in YYYY-MM-DD format or to a time
period between two days in YYYY-MM-DD:YYYY-MM-DD format (two days, separated
by a colon).
Defaults to yesterday.
=item B<--rawdb> I<table> (raw data table)
Override I<DBTableRaw> from F<newsstats.conf>.
=item B<--parsedb> I<table> (parsed data table)
Override I<DBTableParse> from F<newsstats.conf>.
=item B<--conffile> I<filename>
Load configuration from I<filename> instead of F<newsstats.conf>.
=back
=head1 INSTALLATION
See L<doc/INSTALL>.
=head1 EXAMPLES
...
=head1 FILES
=over 4
=item F<bin/parsedb.pl>
The script itself.
=item F<lib/NewsStats.pm>
Library functions for the NewsStats package.
=item F<etc/newsstats.conf>
Runtime configuration file.
=back
=head1 BUGS
Please report any bugs or feature requests to the author or use the
bug tracker at L<http://bugs.th-h.de/>!
=head1 SEE ALSO
=over 2
=item -
L<doc/README>
=item -
L<doc/INSTALL>
=back
This script is part of the B<NewsStats> package.
=head1 AUTHOR
Thomas Hochstein <thh@inter.net>
=head1 COPYRIGHT AND LICENSE
Copyright (c) 2013 Thomas Hochstein <thh@inter.net>
This program is free software; you may redistribute it and/or modify it
under the same terms as Perl itself.
=cut
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